100 P2P Users Upload 75% of Content

Researchers say that about 100 people (called pirates in the article) are responsible for 75 percent of all downloading on BitTorrent (and the same group does 66 percent of all uploading), and says that the way to shut down the p2p network is simply to disincentive that relatively small number of people. The other large group identified in the study were people (such as from copyright enforcement